"As I travelled through America, I noticed the same pattern in many cities: in all the bad areas, I saw white women, generally young and at one time generally pretty, who were drug addicts — and I’m talking serious heroin or crack addicts. Many of them admitted they were sex workers and in many instances they looked like a shell of themselves. This struck me very deeply bringing back memories from my youth.

In all of these women, I see my own mother — ravaged by pharmaceutical drugs, alcohol and her lifestyle — so I went to these areas where they hang out and I started asking them if I could photograph...